The AirTAC Airtac SCD Standard Cylinder SCD100X80 is a genuine double-acting DOUBLE-ROD air cylinder: the Ø25mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø100mm bore, 80mm stroke, PT1/2 ports and adjustable end cushioning.
The SCD100X80 is a double-acting, double-rod pneumatic cylinder that produces exactly the same force in both directions—3681 N at 0.5 MPa—because the 25 mm rod passes through both end caps. This 100 mm bore x 80 mm stroke model is built for short-stroke, two-sided tasks where balanced thrust and a rear rod extension are needed.
With a PT1/2 port, M20x1.5 rod thread, and a 29 mm adjustable air cushion, the SCD100X80 decelerates loads smoothly at end-of-travel. Its tie-rod body length A(SCD) is 263 mm, making it longer than a single-rod SC of the same envelope, and the through-rod improves bearing support against side loads compared to a single-rod cylinder.
| Model | Airtac SCD Standard Cylinder SCD100X80 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø100 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 80 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT1/2 |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 29 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SCD (double-rod) datasheet. Because the rod runs through both caps, the effective area is (bore² − rod²) in both directions. Confirm against the product label before installation. Thread options: PT (standard) / G.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | 5154 N |
| Max (@1.0 MPa) | 751 kgf | |
Push and pull are EQUAL on a double-rod cylinder — both chambers lose the rod area, so effective area = (bore² − rod²) each way. Actual usable force is lower than theoretical due to friction and back-pressure; size with a safety margin.
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 100 | Bore size in mm. |
| ×80 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod), SCJ (adjustable stroke), SCT (multi-position). SCD mounting: Basic, FA, LB, TC, TCM1. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
The 80 mm stroke and equal 3681 N force in both directions make the SCD100X80 ideal for shuttling a fixture or pallet between two stations, with the rear rod available to trigger limit valves.
Use the front rod for a clamp jaw and the rear rod to carry a sensor flag or a manual release knob, achieving symmetric actuation and integrated stroke sensing in one compact unit.
The dual-rod design provides inherent anti-rotation, helping to keep a pusher plate aligned during a short 80 mm advance without needing an external guide for light, centered loads.
Choose the SCD100X80 when you need equal push-pull force and a rear rod for mounting sensors, stoppers, or secondary tooling. If 3681 N at 0.5 MPa is more than your application requires, step down to the SCD80 bore (2268 N at 0.5 MPa) for a lighter, more compact package; if you need more force, the SCD125 delivers 5734 N at the same pressure. For applications where only one rod end is needed, the single-rod SC series is a simpler, lower-cost alternative. A genuine AirTAC SCD double-rod cylinder should be replaced with an identical model matching bore, stroke, PT port thread, SCD mounting accessory, and magnet option (-S).
Double-rod checklist
Because the piston rod extends through both ends, the effective pressure area is identical for both directions. The SCD100X80 produces 3681 N of force in both push and pull at 0.5 MPa, 5153 N at 0.7 MPa, and 6626 N at the maximum operating pressure of 0.9 MPa.
Choose an SCD when you need equal force and speed in both directions, a rear rod to mount tooling or sensors, or better resistance to rod bending. The through-rod design balances the bearing loads, but for significant side forces, a guided cylinder is still required.
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